SPC Timothy Severson and SPC MacDonald set up and test a TACSAC, a radio that uses satellites to communicate, at the National Training Center in Ft. Irwin, Calif. on Friday, July 26, 2002. While the two Specialists were speaking with a communications center only a few hundred yards away, they were testing the equipment in preparation for going to 'war' at Ft. Irwin for the Millennium Challenge 2002 Experiment (MCO2)...Part of the military transformation, MC02 is testing all branches of the military in the largest ever live and virtual battle being played out across the nation through August 15, 2002. The goal is to see how well the different branches operate together under a joint command that shares intelligence and resources in an effort to put the right forces in the right place at the right so as to minimze the amount of fighting that is necessary to protect U.S. interests abroad.